The Boundary Condition Of The Universe

The Boundary Condition Of The Universe

      

               Welcome friends, we will describe here the boundary condition of the universe. In this theory, we can solve many our difficulties about the universe. We all know that the universe was completely in ordered state in its origin as we have described in arrow of time. But why should it be at complete ordered state? Why was it not in the state of complete disorder at all time? And why is the direction of time in which disorder increases the same as that in which the universe expands?

               

               It seems that the universe evolves according to well defined laws which we can be discovered and understood. Can’t we think that the similar rules will work at the beginning of the universe? We can’t predict the beginning of the universe because we know that all our laws break down at the point of singularity.

                

               The universe could have started out in a very smooth and ordered state. This would have led to well defined thermodynamic and cosmological arrow of time, like we observe. But it could equally well have started out in a very lumpy and disordered state. In this case, the universe would already be in a state of complete disorder, so disorder could not increase with time. It would either stay constant, in which case there would be there would be no well defined thermodynamic arrow of time, or it would decrease, in which case thermodynamic arrow of time would point in the opposite direction to the cosmological arrow. Neither of these possibilities would agree with what we observe. (If you have a problem to understand these arrows, you can click here.)  

                

                 Since all our theories break down in singularity so quantum effect becomes important at singularity. We have to use quantum theory of gravity for predictions of the early universe.

                 

                 Quantum theory predicts all the possible histories of the universe. There are a number of couple, associated with each other. One represents the size of a wave and the other the phase of the universe, that is, whether the wave is at a crest or a trough. The possible histories would be curved spaces that would represent the evolution of the universe.

                

                  I hope you may like the blog. If you have any question, you can comment.

                                                                                    -Thank You